CD86 and neoplasm: In ovarian cancer, for instance, we have repeatedly demonstrated that the most abundant leukocyte subset in the SOLID tumor microenvironment in humans, and in both tumor masses and ascites in mice, expresses low but detectable levels of phenotypic markers of bona fide DCs, including CD11c, DEC205, CD86, and MHC-II (10, 13–15, 22, 24, 25).